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Ever heard of a 5.0L that takes 4 qts of oil??

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    #1

    Ever heard of a 5.0L that takes 4 qts of oil??

    Hey guys. I have a strange conundrum ever since I bought my '90 CV. I've always put 5 quarts of oil in per change, but there's a discrepancy in the owner's manual and operating guide. And, as a matter of fact, my dipstick. Here's the deal: every 302 I've ever heard of takes 5 qts. The owner's manual says 5 qts. I've got the standard 2-drain pan. No problem so far. The kicker: my "1990 Operating Guide" clearly says 4.0 quarts! Furthermore, when I put 5 quarts in, my dipstick reads way over full. I've been driving on 5 quarts for over a year, and haven't had any problems. Has anyone heard of a 302 that takes 4? Anyone else come across this weirdness in the literature? Some pics to prove it:

    The manual:


    And the operating guide:
    1990 LTD Crown Victoria LX. As stock as the day it was born.
    16" HPPs sitting in the garage. That's it for now...kids gotta eat.

    Tags: capacity, dipstick, don't trust the dipstick, oil, over-fill, quarts
    #2
    that's bizarre!! never run across that myself.
    Pete ::::>>> resident LED addict and CFI defector LED bulb replacements
    'LTD HPP' 85 Vic (my rusty baby) '06 Honda Reflex 250cc 'Baileys' 91 Vic (faded cream puff) ClifFord 'ODB' 88 P72 (SOLD) '77 LTDII (RIP)
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      #3
      initially after I fill my 302 it will read way over full... but crank it and let it run a moment and then check it with the engine off and it's spot on full.

      Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. -- Albert Einstein
      rides: 93 Crown Vic LX (The Red Velvet Cake), 2000 Crown Vic base model (Sandy), 2003 Expedition (the vacation beast)

      Originally posted by gadget73
      ... and it should all work like magic and unicorns and stuff.

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        #4
        Yeah, it is bizarre. 5 quarts in mine always reads too full. My dipstick is probably wrong. But it's always been weird and a bit troubling to know that both my dipstick and one of my two documents that came with the car are telling me that I'm driving around with too much oil...
        1990 LTD Crown Victoria LX. As stock as the day it was born.
        16" HPPs sitting in the garage. That's it for now...kids gotta eat.

        Comment

          #5
          some of the dipsticks were mis-marked... there was a TSB about the problem.
          ALL 5.0L engines should take 5 qts of oil.

          could simply be a mis-print in the operators manual.
          2003 Town Car Signature - 3.27 RAR, Dual exhaust and J-mod - SOLD 9/2011
          89 Crown Victoria LX HPP -- SOLD 9/2010
          88 Grand Marquis LS - The Original -- Totaled 5/2006

          I rebuild AOD/AODE/4R70W/4R75E transmissions....Check out my Facebook page: https://www.facebook.com/pages/North...48414635312478

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            #6
            Did you take the oil filter off?

            Comment

              #7
              Oil filter?? Just kidding, yeah, I always change the filter too...not a dumb question 86--you never know, I could be an ultimate n00b (not just on GMN)!

              some of the dipsticks were mis-marked... there was a TSB about the problem.
              ALL 5.0L engines should take 5 qts of oil.

              could simply be a mis-print in the operators manual.
              That's right--I vaguely remember that now. Thanks for the input everyone.
              1990 LTD Crown Victoria LX. As stock as the day it was born.
              16" HPPs sitting in the garage. That's it for now...kids gotta eat.

              Comment

                #8
                never trust the dipstick........all panther 302's take 5 quarts with a filter

                1986 lincoln towncar signature series. 5.0 HO with thumper performance ported e7 heads, 1.7 roller rockers, warm air intake, 65mm throttle body, 1/2" intake spacer, ported intakes, 3.73 rear with trac lock, 98-02 front brake conversion, 92-97 rear disc conversion, 1" rear swaybar, 1 3/16" front swaybar, 16" wheels and tires, loud ass stereo system, badass cb, best time to date 15.94 at 87 mph. lots of mods in the works 221.8 rwhp 278 rwt
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                please be patient, rebuilding an empire!

                Comment

                  #9
                  how much remains in there when you pull both drain plugs and let it bleed dry? i thought the dipstick was a bit screwy on mine because 4.8 litres put it WAY over full
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                  - 1990 Ford LTD Crown Victoria P72 - the street boat - 5.0 liter EFI - Ported HO intake/TB, 90 TC shroud/overflow, Aero airbox/zip tube, Cobra camshaft, 19lb injectors, dual exhaust w/ Magnaflows, Cat/Smog & AC delete, 3G alternator, MOOG chassis parts & KYB cop shocks, 215/70r/15s on 95-97 Merc rims

                  - 2007 Ford Escape XLT - soccer mom lifted station wagon - 3.0 Duratec, auto, rear converter delete w/ Magnaflow dual exhaust

                  - 2008 Mercury Grand Marquis Ultimate Edition - Daily driver - 4.6 2 valve Mod motor, 4R75E, 2.73s. Bone stock

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                    #10
                    For the record, if you don't know what normal for your car is, next time you do an oil change, after you put your 5 quarts in and run it to allow circulation through the oil filter and what not, and then a little bit of time to allow the oil to settle back down after you shut it off, look at your dipstick, mark where the level i and that's your full mark.

                    Comment

                      #11
                      4 qts + 1 for the oil filter... even if you chose to do only 4 qts total you'd still be ok.


                      any less is not good.
                      Give a man a fish and he will be fed for a day. Teach a man to fish and he will promptly forget that he once did not know, and proceed to call anyone who asks, a n00b and flame them on the boards for being stupid.

                      Comment

                        #12
                        Originally posted by cld783 View Post
                        4 qts + 1 for the oil filter... even if you chose to do only 4 qts total you'd still be ok.


                        any less is not good.
                        This guys got it. The pan only holds 4.
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